There are three common types of shadow walls:
The first type, located inside the gate, is zigzag, called the shadow wall;
Second, the screen wall located at the gate is independent of the gable or partition wall of the wing, which is called independent screen wall;
The third type, located on the gable of the wing, directly builds a small wall cap to make the shadow wall shape, so that the shadow wall and the gable are connected into one, which is called the shadow wall.
The screen wall is usually decorated with relief of auspicious patterns for people to enjoy. Of course, the screen wall also has its function, which is to block the line of sight of outsiders, even if the door is open, outsiders can't see the house. The screen wall can also block the suffocation outside the house and increase the feng shui fortune of the home.